# ISO 4031:1978 — Withdrawn and superseded ISO standards

For ISO 4031:1978, item title is Information interchange — Representation of local time differentials; status code is 9599; successor is ISO 8601:1988; withdrawn / published date is 1978-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4031:1978 _(verified: appears in the quote below)_
- **Item title:** Information interchange — Representation of local time differentials _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 8601:1988
- **Withdrawn / published date:** 1978-12-01 _(verified: appears in the quote below)_

## What the source says

> 9722,IS,,ISO 4031:1978,Information interchange — Representation of local time differentials,Échange d'information — Représentation des différences d'heure légale,1978-12-01,1,['07.100.30'],ISO/TC 154,9599,,[15903],"['en','fr']",2,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).